<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--table>tr*3>td*3-->
<table border="1px" cellspacing="0">
  <tr>
    <td>11</td>
    <td colspan="3">12</td>
    <td>13</td>
  </tr>
  <tr>
    <td>21</td>
    <td rowspan="2">22</td>
    <td>23</td>
  </tr>
  <tr>
    <td>31</td>
    <td>32</td>
    <td>33</td>
  </tr>
</table>
</body>
</html>